GWT Plugin 4.0 is a test but has been released.
https://eclipse.gwtproject.org.vertispan.com/2023-02-01
In my environment, by setting the compiler and facet to Java8, I have
confirmed that it works on 2022-12 as well.
Also, the GWT-eclipse-plugin is discussed at the following URL.
https://gitter.im/gwt-plugins/gwt-eclipse-plugin
2023年2月7日火曜日 1:29:18 UTC+9 jiny...@gmail.com:
> We tried to install GWT plugin 3.0 from Eclipse market place on a new
> laptop for
> Eclipse Version: 2020-06 (4.16.0), but we got the following not available
> error message.
>
> This approach worked several months ago, so we're not sure why we got this
> error now.
> Please help give some suggestions for this issue.
>
> [image: GWTPluginError.jpg]
>
> Your help is much appreciated!
>
> thanks,
> Jenny
>
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